Einion Yrth ap Cunedda

Einion Yrth ap Cunedda (390-470) was King of Gwynedd from 445 to 470, preceding Cadwallon Lawhir ap Einion. He founded Gwynedd after expelling Irish raiders from the region, while his brother Ceredig founded Ceredigion and his other brother Meirion founded Meirionnydd. He died in 470, and he was succeeded by his son Cadwallon.